Omnidirectional antenna, Ground plane in significant robust implementation (Folded Ground plane 1/4 Lambda). Technical data: Frequency 108-136 MHz, impedance 50 ohms, gain 2,15 dBi, Pmax 1000 W, N-fermale, material aluminium anodises, stainless steel, level of 950 mm, length the radial 710 mm, weight 1100 gramme, mast mounting oversize mast 32-38mm, optionally adaptors for side mast mounting 35-54 mm.